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kuuan
Joined: 14 Jan 2008 Posts: 4572 Location: right now: Austria
Expire: 2014-12-26
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Posted: Sat May 17, 2014 10:39 pm Post subject: M-Rokkors |
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kuuan wrote:
M-Rokkor lenses, f4/90mm, f2.8/28mm and f2/40mm
the 28mm has the dreaded 'white spot' problem:
with it's original hood:
the hood in 'transport' position:
the f2/40mm
rear:
with caps:
the f4/90mm with original collapsable hood
with Ricoh GXR M on which they fit 'natively'
cheers, andreas _________________ my photos on flickr: https://www.flickr.com/photos/kuuan/collections |
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Nordentro
Joined: 24 Jun 2010 Posts: 4713 Location: Lillehammer, Norway
Expire: 2015-01-29
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Posted: Fri May 30, 2014 7:24 pm Post subject: |
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Nordentro wrote:
Nice collection, is the 28mm still usable? _________________ Lars | Manuellfokus.no |
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Attila
Joined: 24 Feb 2007 Posts: 57849 Location: Hungary
Expire: 2025-11-18
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Posted: Fri May 30, 2014 8:04 pm Post subject: |
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Attila wrote:
Beautiful series! _________________ -------------------------------
Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
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kuuan
Joined: 14 Jan 2008 Posts: 4572 Location: right now: Austria
Expire: 2014-12-26
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Posted: Fri May 30, 2014 8:54 pm Post subject: |
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kuuan wrote:
Nordentro wrote: |
Nice collection, is the 28mm still usable? |
photos have a strong haze, to a certain degree that can be corrected in PP, but I'd say that the 28, as it is, really is not useable.
on the net one finds many people that say that the white spots on the M-Rokkor 2.8/28 do not have any negative effect on IQ. What they will refer to is paint peeling off from the rim of the lens where black paint should prevent inner reflection, that paint peeled off is seen as white points around the rim of the front element, usually in quite a perfect circle, the socalled Schneideritis. That alone really should not impact IQ negatively, possibly it could result in flaring a bit more easily.
My lens has a later stadium of the 'desease', when broken off flackes of paint also settle around the middle of the rear of the front element. As I had to experience this really impacts IQ very strongly!
Unfortunately it is not easy to repair, the front lens, though a single element, cannot be disassembled 'normally' but one has to cut that block open. There is a "camera service" in the Netherlands that do that repair, I read they charge 75.- Euro for each fault + taxes + sending, that is 75.- for the Schneideritis and 75.- for the flakes in the middle of the front lens, incl. taxes and sending that makes a total of about 200.- So far I really like the 2/40 and the 4/90 very much indeed, still have high hopes for the 28mm too, shall first try to have it repaired by my 'lens doctor' in Saigon.
cheers, andreas _________________ my photos on flickr: https://www.flickr.com/photos/kuuan/collections |
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kuuan
Joined: 14 Jan 2008 Posts: 4572 Location: right now: Austria
Expire: 2014-12-26
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Posted: Fri May 30, 2014 8:55 pm Post subject: |
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kuuan wrote:
Attila wrote: |
Beautiful series! |
thank's Attila, they are a joy in use and very good performers, ideal for any mirrorless _________________ my photos on flickr: https://www.flickr.com/photos/kuuan/collections |
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kds315*
Joined: 12 Mar 2008 Posts: 16541 Location: Weinheim, Germany
Expire: 2021-03-09
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Posted: Fri May 30, 2014 10:04 pm Post subject: |
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kds315* wrote:
I had all of them on my RD-1 and they were great and easy to use. Still regretting having sold them... _________________ Klaus - Admin
"S'il vient a point, me souviendra" [Thomas Bohier (1460-1523)]
http://www.macrolenses.de for macro and special lens info
http://www.pbase.com/kds315/uv_photos for UV Images and lens/filter info
https://www.flickr.com/photos/kds315/albums my albums using various lenses
http://photographyoftheinvisibleworld.blogspot.com/ my UV BLOG
http://www.travelmeetsfood.com/blog Food + Travel BLOG
https://galeriafotografia.com Architecture + Drone photography
Currently most FAV lens(es):
X80QF f3.2/80mm
Hypergon f11/26mm
ELCAN UV f5.6/52mm
Zeiss UV-Planar f4/60mm
Zeiss UV-Planar f2/62mm
Lomo Уфар-12 f2.5/41mm
Lomo Зуфар-2 f4.0/350mm
Lomo ZIKAR-1A f1.2/100mm
Nikon UV Nikkor f4.5/105mm
Zeiss UV-Sonnar f4.3/105mm
CERCO UV-VIS-NIR f1.8/45mm
CERCO UV-VIS-NIR f4.1/94mm
CERCO UV-VIS-NIR f2.8/100mm
Steinheil Quarzobjektiv f1.8/50mm
Pentax Quartz Takumar f3.5/85mm
Carl Zeiss Jena UV-Objektiv f4/60mm
NYE OPTICAL Lyman-Alpha II f1.1/90mm
NYE OPTICAL Lyman-Alpha I f2.8/200mm
COASTAL OPTICS f4/60mm UV-VIS-IR Apo
COASTAL OPTICS f4.5/105mm UV-Micro-Apo
Pentax Ultra-Achromatic Takumar f4.5/85mm
Pentax Ultra-Achromatic Takumar f5.6/300mm
Rodenstock UV-Rodagon f5.6/60mm + 105mm + 150mm
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kuuan
Joined: 14 Jan 2008 Posts: 4572 Location: right now: Austria
Expire: 2014-12-26
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Posted: Sat May 31, 2014 10:56 am Post subject: |
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kuuan wrote:
kds315* wrote: |
I had all of them on my RD-1 and they were great and easy to use. Still regretting having sold them... |
Klaus I remember you having said the same about other RF glass too, right? You really better had kept them..
Since I am using mirrorless I have been trying to get myself a good set of RF glass! Actually first I had gone for the Pen-F halfframe lenses as rel. cheaper alternatives, but lately, in anticipation of a FF mirrorless that I may get eventually, I pretty much succeeded to complete a set of RF glass too. IMO these lenses just fit a mirrorless so much better than any SLR glass, now it only will be RF and halfframe lenses that go with me on my travels, so much lighter, so much less volume. ( not entirely true, shall carry min. my SLR Macro lens, maybe 1 or 2 others more, but for normal street use lately it has been and in foreseeable future it will be RF and halframe lenses only )
Have prices of RF glass been rising? Actually I am not sure, I don't know the prices of 2 or more years ago, since you sold your's you will know. I much suppose that more and more users of mirrorless will want more and more RF glass, that therefore prices most likely will continue to rise, or in other words, if wanted used RF lenses better to get them soon _________________ my photos on flickr: https://www.flickr.com/photos/kuuan/collections |
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